Curve resolution in Aspire

Hi,

I'm currently experimenting Aspire, and I've found something strange ...

I draft a texte, and extruded it to 0.25". The 3D result seems to be good, but when I look closer, all the curve look like a stair. And these stairs are what my machine did. A lot of sanding is required.

Take a look at this :

http://i250.photobucket.com/albums/g...Resolution.jpg

Is it possible to have a better resolution with Aspire ???


Thanks